diff -Naurd mpfr-3.1.2-a/PATCHES mpfr-3.1.2-b/PATCHES
--- mpfr-3.1.2-a/PATCHES	2013-12-01 11:07:49.575329762 +0000
+++ mpfr-3.1.2-b/PATCHES	2013-12-01 11:07:49.751331625 +0000
@@ -0,0 +1 @@
+custom_init_set
diff -Naurd mpfr-3.1.2-a/VERSION mpfr-3.1.2-b/VERSION
--- mpfr-3.1.2-a/VERSION	2013-12-01 11:07:49.571329714 +0000
+++ mpfr-3.1.2-b/VERSION	2013-12-01 11:07:49.747331585 +0000
@@ -1 +1 @@
-3.1.2-p4
+3.1.2-p5
diff -Naurd mpfr-3.1.2-a/src/mpfr.h mpfr-3.1.2-b/src/mpfr.h
--- mpfr-3.1.2-a/src/mpfr.h	2013-12-01 11:07:49.571329714 +0000
+++ mpfr-3.1.2-b/src/mpfr.h	2013-12-01 11:07:49.747331585 +0000
@@ -27,7 +27,7 @@
 #define MPFR_VERSION_MAJOR 3
 #define MPFR_VERSION_MINOR 1
 #define MPFR_VERSION_PATCHLEVEL 2
-#define MPFR_VERSION_STRING "3.1.2-p4"
+#define MPFR_VERSION_STRING "3.1.2-p5"
 
 /* Macros dealing with MPFR VERSION */
 #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
@@ -861,7 +861,7 @@
     _t = (mpfr_kind_t) _k;                                     \
     _s = 1;                                                    \
   } else {                                                     \
-    _t = (mpfr_kind_t) -k;                                     \
+    _t = (mpfr_kind_t) - _k;                                   \
     _s = -1;                                                   \
   }                                                            \
   _e = _t == MPFR_REGULAR_KIND ? (e) :                         \
diff -Naurd mpfr-3.1.2-a/src/version.c mpfr-3.1.2-b/src/version.c
--- mpfr-3.1.2-a/src/version.c	2013-12-01 11:07:49.575329762 +0000
+++ mpfr-3.1.2-b/src/version.c	2013-12-01 11:07:49.747331585 +0000
@@ -25,5 +25,5 @@
 const char *
 mpfr_get_version (void)
 {
-  return "3.1.2-p4";
+  return "3.1.2-p5";
 }